Placeholder example: After Just getting your power systems back online and a light to see again, you need to look for a way to save that last bit of remaining battery power remaining until you can deploy the solar panels.... or else it's game over!:
Comic-Style Graphic:
digitalWrite(BUZZER_PIN, HIGH); // Turn on buzzer
delay(1000); // let it run one second
digitalWrite(BUZZER_PIN, LOW); // Turn off buzzer
| Arduino | Buzzer |
|---|---|
| 2 | + |
| GND | other |
No libraries or includes required.